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 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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 */

package com.sun.corba.se.impl.protocol;

import org.omg.CORBA.BAD_OPERATION;
import org.omg.CORBA.INTERNAL;
import org.omg.CORBA.SystemException;
import org.omg.CORBA.CompletionStatus;

import com.sun.corba.se.spi.protocol.LocalClientRequestDispatcher;
import com.sun.corba.se.spi.protocol.ForwardException;

// XXX This should be in the SPI
import com.sun.corba.se.impl.protocol.LocalClientRequestDispatcherBase;

import com.sun.corba.se.spi.oa.OAInvocationInfo;
import com.sun.corba.se.spi.oa.ObjectAdapter;
import com.sun.corba.se.spi.oa.OADestroyed;

import com.sun.corba.se.spi.orb.ORB;

import com.sun.corba.se.spi.ior.IOR;

import com.sun.corba.se.spi.logging.CORBALogDomains;

import com.sun.corba.se.impl.logging.POASystemException;

public abstract class ServantCacheLocalCRDBase extends LocalClientRequestDispatcherBase {

    private OAInvocationInfo cachedInfo;
    protected POASystemException wrapper;

    protected ServantCacheLocalCRDBase(ORB orb, int scid, IOR ior) {
        super(orb, scid, ior);
        wrapper = POASystemException.get(orb, CORBALogDomains.RPC_PROTOCOL);
    }

    protected synchronized OAInvocationInfo getCachedInfo() {
        if (!servantIsLocal)
            throw wrapper.servantMustBeLocal();

        if (cachedInfo == null) {
            ObjectAdapter oa = oaf.find(oaid);
            cachedInfo = oa.makeInvocationInfo(objectId);

            // InvocationInfo must be pushed before calling getInvocationServant
            orb.pushInvocationInfo(cachedInfo);

            try {
                oa.enter();
                oa.getInvocationServant(cachedInfo);
            } catch (ForwardException freq) {
                throw wrapper.illegalForwardRequest(freq);
            } catch (OADestroyed oades) {
                // This is an error since no user of this implementation
                // should ever throw this exception
                throw wrapper.adapterDestroyed(oades);
            } finally {
                oa.returnServant();
                oa.exit();
                orb.popInvocationInfo();
            }
        }

        return cachedInfo;
    }
}

// End of File
